HistoryStudent
Senior Member
I have two nel coils: the tiny snake and the tornado. They are both high quality coils but what I've found using my Tornado is that what I get, in practical terms, is deeper clarity. What I mean by that is the stock coil on my AT Pro may give me an iffy signal on an 8 inch coin but my Tornado will give me a clearer signal on the same coin. I honestly don't know if it can see deeper but it certainly makes everything within the range of the stock coil much clearer and less iffy.